我正在使用kubectl来访问ubuntu上我的minikube集群上的api服务器，但当尝试使用kubectl命令时，我得到了一个错误证书过期：

/home/ayoub# kubectl get pods
Unable to connect to the server: x509: certificate has expired or is not yet valid: current time 2021-08-30T14:39:50+01:00 is before 2021-08-30T14:20:10Z

下面是我的kubectl配置：

/home/ayoub# kubectl config view
apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: DATA+OMITTED
    server: https://127.0.0.1:16443
  name: microk8s-cluster
contexts:
- context:
    cluster: microk8s-cluster
    user: admin
  name: microk8s
current-context: microk8s
kind: Config
preferences: {}
users:
- name: admin
  user:
    token: REDACTED
root@ayoub-Lenovo-ideapad-720S-13IKB:/home/ayoub#    /home/ayoub# kubectl config view
apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: DATA+OMITTED
    server: https://127.0.0.1:16443
  name: microk8s-cluster
contexts:
- context:
    cluster: microk8s-cluster
    user: admin
  name: microk8s
current-context: microk8s
kind: Config
preferences: {}
users:
- name: admin
  user:
    token: REDACTED
root@ayoub-Lenovo-ideapad-720S-13IKB:/home/ayoub#

如何续订此证书？